Your average multi-tool doesn't do it all, and at 160g, the Topeak Hexux II 16-function bike mini tool is a roadside lifesaver. Not only does it have the standard hex, Phillips, and flat screwdrivers, it's got plastic tire levers, a Torx T-25, spoke wrenches, and even a chain tool with hook. If they could fit a BB tool on there, you could pretty much build a whole bike with this thing.

I try to keep a multitool on each bike, and after a few chain mishaps I like a chain tool. This is the lightest one I have used. I haven't needed the chain tool yet, although I've used it on another topeak tool with success. So far very pleased with it.

The only thing about this tool that I was disappointed about was the torx tool size. I needed a t15 and the size that comes with the tool is a t25. So I had to purchase a separate torx tool. Other than that, having this and all of its tools, plus with the tire levers attached has cleared a bit of room out in my pack under my saddle.

I love the light weight, but not so excited about the plastic tire levers (that's why I only rated it 4 stars). I will have to be VERY careful if I ever need to use them on the trail to avoid breaking them. My last multi-tool was also a Topek, but I lost it when my tailpack departed the bike during a ride 6 weeks ago. It was way heavier than this one, the tire levers were much more substantial, but Nasbar doesn't offer that model anymore ... oh well --- but I do love the ligher weight on this one! : )